Fault detection device, fault detection method, and program
AssigneeMitsubishi Electric Corporation
InventorsMakoto KATSUKURA, Masanori NAKATA
Life of this patent
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Abstract
A fault detection device comprises: a measurement data acquirer that acquires measurement data for current flowing on power supply lines that are connected to multiple electrical devices; a clusterer that classifies the measurement data for a past fixed period into multiple clusters based on at least one of frequency and phase with respect to an AC cycle; a pattern analyzer that analyzes each of the clusters for an appearance pattern of measurement data that satisfy a preset standard; and a fault determiner that determines the occurrence of a fault when measurement data is acquired that differs from the analyzed appearance pattern.
Claims11
A fault detection device, comprising:
- a measurement data acquirer configured to acquire measurement data for current flowing through power supply lines connected to multiple electrical devices;
- a clusterer configured to classify the measurement data for a past fixed period into multiple clusters based on at least one of frequency and phase with respect to an AC cycle;
- a pattern determiner configured to determine, for each cluster of the multiple clusters, an appearance pattern of the measurement data satisfying a preset standard;
- and
- a fault determiner configured to determine that a fault has occurred to an inhabitant when measurement data additionally acquired does not match the appearance pattern determined by the pattern determiner.
(canceled)
A fault detection method, comprising:
- acquiring measurement data for current flowing on power supply lines connected to multiple electrical devices;
- classifying the measurement data for a past fixed period into multiple clusters based on at least one of frequency and phase with respect to an AC cycle;
- determining, for each cluster of the multiple clusters, an appearance pattern of the measurement data satisfying a preset standard;
- and
- determining that a fault has occurred to an inhabitant when measurement data additionally acquired does not match the appearance pattern.
A non-transitory recording medium storing a program allowing a computer to function as:
- a measurement data acquirer configured to acquire measurement data for current flowing on power supply lines connected to multiple electrical devices;
- a clusterer configured to classify the measurement data for a past fixed period into multiple clusters based on at least one of frequency and phase with respect to an AC cycle;
- a pattern determiner configured to determine, for each cluster of the multiple clusters, an appearance pattern of the measurement data satisfying a preset standard;
- and
- a fault determiner configured to determine that a fault has occurred to an inhabitant when measurement data additionally acquired does not match the appearance pattern determined by the pattern determiner.
Dependencies are inferred from the claim text.